Air duct and air conditioning system

Abstract

The present invention belongs to the technical field of vehicle air conditioning, and specifically relates to an air duct and air conditioning system, wherein the air duct comprises: a pipe body, which comprises a flexible pipe and a rigid pipe located at the front end of the flexible pipe, and an air outlet is formed at the front end of the rigid pipe; a hanging assembly, which comprises an annular bracket sleeved on the outside of the pipe body, and a telescopic member arranged on the outside of the pipe body along the circumference of the pipe body, one end of the telescopic member is fixedly connected to the annular bracket, and the other end of the telescopic member is connected to the rigid pipe through a hinge and a slider, and the telescopic member is not perpendicular to the rigid pipe; and a regulating assembly, which is used to control the extension or contraction of the telescopic member. The annular bracket is fixedly set on a nearby component, and the regulating assembly provides power and controls the extension and contraction of the telescopic member. The air duct can not only flexibly adjust the distance between the air outlet and the driver and passenger and the air outlet angle to meet the blowing needs of the driver and passenger, but also avoid the pressure loss and noise problems caused by the setting of the air guide plate, thereby improving the comfort of the driver and passenger.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle air conditioning, and in particular relates to an air duct and an air conditioning system. Background Art

[0002] The air duct is an important part of the air conditioning system, especially in car air conditioning. The air outlet of the traditional air duct is fixed, and a rotatable air guide plate is provided at the air outlet. By adjusting the angle of the air guide plate, the air outlet direction can be changed to meet the blowing needs of the driver and passengers.

[0003] However, with the updated design of the cockpit layout, the air outlet of the air duct is getting farther and farther away from the driver and passengers. The flexibility of the traditional air duct is poor, and the distance between the air outlet and the driver and passengers is constant. The air volume attenuation of the air outlet blowing to the driver and passengers is large, which seriously affects the blowing experience of the driver and passengers. Especially in winter when heating, the ambient temperature is low and the air volume and temperature attenuation are large, and the heating experience of the driver and passengers is poor. In addition, the wind deflector will increase the wind resistance in the air duct and generate noise, which seriously affects the driving experience. Summary of the invention

[0004] The object of the present invention is to provide an air duct and an air conditioning system to solve the problem that the traditional air duct has poor flexibility and affects the air blowing experience of the driver and passengers.

[0005] According to an embodiment of the present disclosure, a first aspect provides an air duct, comprising:

[0006] A pipe body, comprising a flexible pipe and a rigid pipe located at the front end of the flexible pipe, wherein the front end of the rigid pipe is formed with an air outlet;

[0007] A hanging assembly, comprising an annular bracket sleeved on the outside of the tube body, a telescopic member annularly arranged on the outside of the tube body along the circumference of the tube body, one end of the telescopic member is fixedly connected to the annular bracket, the other end of the telescopic member is connected to the rigid pipe through a hinge and a slider, and the central axis of the telescopic member is not perpendicular to the central axis of the rigid pipe;

[0008] A regulating component is used to control the extension and contraction of the telescopic member.

[0009] In some embodiments, a slide rail is provided on the rigid pipe to control the axial movement of the slider along the rigid pipe, and the central axis of the telescopic member forms an angle with the central axis of the rigid pipe.

[0010] In some embodiments, the telescopic member is a cylinder, and the cylinder includes a cylinder body, a first piston and a rod body;

[0011] The first end of the cylinder body is hinged on the annular bracket, and a first chamber is formed between the first end and the first piston;

[0012] The rod body extends out of the second end of the cylinder body and is connected to the slider through a hinge.

[0013] In some embodiments, the regulating component includes an air pump, an air groove formed in the annular bracket, an air supply pipeline for connecting the air groove and the air pump, and a valve sheet with adjustable opening;

[0014] The air groove is communicated with the first chamber; the valve plate is arranged on the cylinder body and is used for opening and closing the first chamber.

[0015] In some embodiments, the regulating assembly further includes a branch slot body extending from the air slot, a control switch and a second piston disposed in the branch slot body, and a first spring and a movable bracket disposed on the second piston;

[0016] The front end of the branch groove body is connected to the gas groove, and the rear end of the branch groove body forms a cylindrical portion; the second piston is located at the gas outlet side of the control switch and is movably arranged in the cylindrical portion;

[0017] The movable bracket extends out of the branch slot and is connected to the valve plate to drive the valve plate to open and close the first cavity; the first spring acts on the second piston, so that the second piston controls the valve plate to remain open through the movable bracket.

[0018] In some embodiments, the valve plate is movable along the radial direction of the cylinder body, the cylindrical portion is arranged corresponding to the valve plate, and the central axis of the cylindrical portion is perpendicular to the central axis of the cylinder body.

[0019] In some embodiments, the regulating component also includes a second spring, one end of which is connected to a side of the annular bracket away from the cylinder, and the other end of the second spring is connected to the rigid pipe, and the rigid pipe maintains an initial state under the action of the second spring.

[0020] In some embodiments, the flexible conduit is a corrugated tube.

[0021] In some embodiments, the number of the telescopic members is at least 3.

[0022] According to an embodiment of the present disclosure, a second aspect provides an air conditioning system, including a controller, a detection device, and the aforementioned air duct;

[0023] The detection device includes a temperature sensor and an infrared sensor, wherein the temperature sensor is used to obtain the gas temperature at the air outlet, and the infrared sensor is used to obtain the distance between the air outlet and the human body and the temperature of the human body;

[0024] The controller adjusts the position of the air outlet using the regulating component based on the distance information obtained by the infrared sensor; the controller adjusts the direction of the air outlet using the regulating component based on the human body temperature information obtained by the infrared sensor; the controller adjusts the air outlet temperature at the air outlet based on the human body temperature information and the gas temperature information.

[0025] The air duct of the present invention is used, and the annular bracket is fixedly set on the nearest component, and the tube body is suspended on the inner side of the annular bracket through the telescopic part. The flexible pipe can be deformed so that the rigid pipe can move relative to the annular bracket. The regulating component provides power and controls the telescopic part to adjust the distance between the air outlet and the target position and change the direction of the air outlet. This air duct can not only flexibly adjust the distance between the air outlet and the driver and passengers and the air outlet angle to meet the blowing needs of the driver and passengers, but also avoids the pressure loss and noise problems caused by the installation of the wind guide plate, thereby improving the comfort of the driver and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the structure of the air duct of this embodiment;

[0027] Figure 2 This is a schematic diagram of the enlarged structure at point A.

[0028] In the figure, the flexible pipe 10; the rigid pipe 11; the air outlet 111; the annular bracket 20; the bracket body 21; the fixing frame 22; the air groove 23; the telescopic member 30; the cylinder body 31; the rod body 32; the first piston 33; the first chamber 34; the second chamber 35; the slider 36; the air pump 40; the air supply pipe 41; the branch tank body 42; the cylindrical part 421; the second piston 43; the first spring 44; the movable bracket 45; the valve plate 46; the second spring 47; the control switch 48; the pressure difference sensor 49; the detection device 50. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention.

[0031] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0032] The directional words such as "front end" and "front" cited in this specification refer to the direction of the air duct toward the human tissue, and the directional words such as "rear end" and "rear" refer to the direction of the air duct away from the human tissue.

[0033] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] like Figure 1 As shown, this embodiment provides an air duct, including a pipe body, a hanging assembly and a regulating assembly. The pipe body includes a flexible pipe 10 and a rigid pipe 11 located at the front end of the flexible pipe 10, and an air outlet 111 is formed at the front end of the rigid pipe 11. The hanging assembly includes an annular bracket 20 sleeved on the outside of the pipe body, a telescopic member 30 arranged on the outside of the pipe body along the circumference of the pipe body, one end of the telescopic member 30 is connected to the annular bracket 20, and the other end of the telescopic member 30 is connected to the rigid pipe 11. The central axis of the telescopic member 30 forms an angle with the central axis of the rigid pipe 11 or the telescopic member 30 is arranged parallel to the rigid pipe 11, so that the central axis of the telescopic member 30 is not perpendicular to the central axis of the rigid pipe 11, ensuring that the telescopic member 30 can drive the rigid pipe 11 to move along its axial direction. The regulating assembly is used to control the extension or retraction of the telescopic member 30.

[0035] In the air duct of the present embodiment, the annular bracket 20 is fixedly arranged on the nearest parts, the tube body is suspended on the inner side of the annular bracket 20 by the telescopic member 30, and the flexible pipe 10 is connected to the original fixed pipe of the air conditioner to introduce gas. Since the rear end of the rigid pipe 11 is connected with the flexible pipe 10, the flexible pipe 10 can be deformed, so that the rigid pipe 11 can move relative to the annular bracket 20. The regulating component provides power and controls the telescopic member 30 to expand and contract. When all the telescopic members 30 outside the tube body are synchronously extended or contracted, the telescopic member 30 can drive the rigid pipe 11 to move along its axial direction, and then adjust the distance between the air outlet 111 and the target position, and improve the problem of serious air volume attenuation caused by excessive distance. When the telescopic member 30 on one side of the tube body is extended and the telescopic member 30 on the other side is contracted, the front end of the rigid pipe 11 will be offset toward the side where the telescopic member 30 is contracted, and then the direction of the air outlet 111 is changed, so that the air volume is blown to the target position at a suitable angle. The air duct of this embodiment can not only flexibly adjust the distance between the air outlet 111 and the driver and passengers, as well as the air outlet angle to meet the blowing needs of the driver and passengers; it also avoids the pressure loss and noise problems caused by the installation of the air guide plate, thereby improving the comfort of the driver and passengers.

[0036] It should be noted that the flexible pipe 10 of this embodiment is a deformable pipe such as a rubber hose or a bellows to meet the activity requirements of the rigid pipe 11. The rigid pipe 11 is a pipe such as a plastic pipe or a cast iron pipe that is not easily deformed during normal use to ensure the structural stability of the air outlet 111. The flexible pipe 10 of this embodiment is preferably a bellows, which also has a certain silencing function and helps to reduce noise.

[0037] The number of telescopic members 30 in this embodiment is preferably at least 3. When only two telescopic members 30 are arranged around the outer side of the tube body, the rigid pipe 11 can move axially and swing relative to the fixing frame 22 in the plane where the two telescopic members 30 are located, and its degree of freedom is low. When three or more telescopic members 30 are arranged, the rigid pipe 11 has a high degree of freedom of movement.

[0038] One end of the telescopic member 30 of this embodiment is fixed on the annular bracket 20, and the other end of the telescopic member 30 is connected to the rigid pipe 11 through a hinge and a slider 36. The central axis of the telescopic member 30 forms an angle with the central axis of the rigid pipe 11; a slide rail is provided on the rigid pipe 11 to control the axial movement of the slider 36 along the rigid pipe 11. In other words, the telescopic member 30 is tilted, and the telescopic member 30 is neither perpendicular nor parallel to the rigid pipe 11. Compared with the telescopic member 30 arranged in parallel, it is more labor-saving for the annular bracket 20 to hang the rigid pipe 11 through the tilted telescopic member 30. In some embodiments, the slider 36 can be optionally arranged on the telescopic member 30 so that the slider 36 slides on the telescopic member 30.

[0039] See Figure 2The telescopic member 30 of this embodiment is preferably a cylinder, which includes a cylinder body 31, a first piston 33 and a rod body 32. The first end of the cylinder body 31 is fixedly arranged on the annular bracket 20, and a first chamber 34 is formed between the first end and the first piston 33. A second chamber 35 is formed between the second end of the cylinder and the first piston 33. One end of the rod body 32 is connected to the first piston 33, and the other end extends from the second end and is connected to the rigid pipe 11 through a hinge and a slider 36. One end of the telescopic member 30 of some embodiments can be hinged on the annular bracket 20, and the other end of the telescopic member 30 is hinged on the rigid pipe 11, so that there is no interference when the telescopic member 30 drives the rigid pipe 11 to move. The telescopic member 30 of some embodiments can use conventional telescopic devices such as electric push rods and hydraulic cylinders.

[0040] The control assembly of this embodiment includes an air pump 40, an air groove 23 formed in the annular bracket 20, an air supply pipe 41 for connecting the air groove 23 and the air pump 40, and a valve plate 46 with an adjustable opening. The air groove 23 is connected to the first chamber 34, and the valve plate 46 is provided on the cylinder body 31 for opening and closing the first chamber 34. By adjusting the opening of the valve plate 46 and the duration of the valve plate 46 being opened, the ventilation amount of the air groove 23 to the first chamber 34 can be adjusted to change the pressure difference between the first chamber 34 and the second chamber 35, thereby adjusting the expansion and contraction amount of the cylinder.

[0041] The control assembly of this embodiment also includes a branch slot body 42 led out from the gas slot 23, a control switch 48 disposed in the branch slot body 42, a second piston 43, and a first spring 44 and a movable bracket 45 disposed on the second piston 43. Specifically, the front end of the branch slot body 42 is connected to the gas slot 23, and the rear end of the branch slot body 42 forms a cylindrical portion 421; the second piston 43 is located on the gas outlet side of the control switch 48, and is movably disposed in the cylindrical portion 421. The movable bracket 45 extends out of the branch slot body 42 and is connected to the valve plate 46, so as to drive the valve plate 46 to open and close the first cavity; one end of the first spring 44 is connected to the inner wall of the branch slot body 42, and the other end is connected to the second piston 43. The first spring 44 acts on the second piston 43, so that the second piston 43 controls the valve plate 46 through the movable bracket 45 to keep it open.

[0042] During operation, the air duct of this embodiment adjusts the opening of the control switch 48 to adjust the pressure growth rate in the cylinder 421. When the opening of the control switch 48 is large, the pressure in the cylinder 421 increases quickly, so that the second piston 43 can overcome the force of the first spring 44 in a short time, and then quickly control the valve plate 46 to close through the movable bracket 45; since the valve plate 46 is opened for a short time, less gas enters the first chamber 34 from the gas groove 23, and the extension of the cylinder is short. Similarly, when the opening of the control switch 48 is small, the second piston 43 needs a longer time to overcome the force of the first spring 44, so that the valve plate 46 is opened for a longer time, more gas enters the first chamber 34 from the gas groove 23, and the extension of the cylinder is longer. The control component can adjust the extension of the cylinder by only controlling the opening of a switch valve, and the control is simpler.

[0043] In this embodiment, the valve plate 46 can move along the radial direction of the cylinder body 31, and the cylindrical part 421 is arranged corresponding to the valve plate 46, and the central axis of the cylindrical part 421 is perpendicular to the central axis of the cylinder body 31. The movable bracket 45 can directly extend from the rear end surface of the cylindrical part 421 and then connect to the valve plate 46, and the second piston 43 directly controls the movement of the valve plate 46 along the radial direction of the cylinder body 31 through the movable bracket 45, and the structure is simple. In some embodiments, the valve plate 46 can choose to open and close the first chamber 34 in a rotating or swinging manner, and the movable bracket 45 converts the force generated by the movement of the second piston 43 into the force required for the valve plate 46 to rotate or swing.

[0044] The control assembly of this embodiment also includes a second spring 47, one end of which is connected to the side of the annular bracket 20 away from the cylinder, and the other end of the second spring 47 is connected to the rigid pipe 11. The rigid pipe 11 maintains an initial state under the action of the second spring 47. The initial state of this embodiment refers only to the state when the rigid pipe 11 is not displaced relative to the annular bracket 20 before the telescopic member 30 is not working. After the air pump 40 stops supplying air, the rigid pipe 11 moves toward the initial position under the action of the second spring 47. Since the valve plate 46 remains open under the action of the first spring 44, the gas in the first chamber 34 can flow back into the gas groove 23, so that the rigid pipe 11 and the cylinder are reset.

[0045] In this embodiment, the annular bracket 20 includes an annular bracket body 21 and an annular fixing frame 22, the inner peripheral wall of the fixing frame 22 is connected to the outer peripheral wall of the bracket body 21, and in the axial direction of the annular bracket 20, the length of the fixing frame 22 is greater than the length of the bracket body 21. The air groove 23 is formed in the bracket body 21, and the outer peripheral wall of the fixing frame 22 has a large surface area, which is convenient for fixing the annular bracket 20. The second spring 47 and the cylinder of this embodiment are both connected to the bracket body 21.

[0046] The control assembly of this embodiment further includes a differential pressure sensor 49, which is used to detect the pressure value and pressure difference between the gas groove 23 and the first chamber 34. The differential pressure sensor 49 can obtain accurate pressure information, which helps to accurately control the extension and contraction amount of the cylinder.

[0047] This embodiment also relates to an air conditioning system, which includes a controller, a detection device 50 and the aforementioned air duct, wherein the detection device 50 includes a temperature sensor and an infrared sensor, wherein the temperature sensor is used to obtain the gas temperature at the air outlet 111, and the infrared sensor is used to obtain the distance between the air outlet 111 and the human body and the temperature of the human body. The controller uses a control component to adjust the position of the air outlet 111 based on the distance information obtained by the infrared sensor; the controller uses a control component to adjust the direction of the air outlet 111 based on the human body temperature information obtained by the infrared sensor, so that the air outlet 111 blows to a position with a lower human body temperature at a suitable outlet angle; the controller adjusts the air outlet temperature at the air outlet 111 based on the human body temperature information and the gas temperature information, so that the air outlet 111 blows to the human body at a suitable temperature, thereby improving the comfort of the driver and passengers.

[0048] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A duct, It is characterized in that include: A pipe body, comprising a flexible pipe (10) and a rigid pipe (11) located at the front end of the flexible pipe (10), wherein an air outlet (111) is formed at the front end of the rigid pipe (11); A hanging assembly, comprising an annular bracket (20) sleeved on the outside of the tube body, and a telescopic member (30) annularly arranged on the outside of the tube body along the circumference of the tube body, one end of the telescopic member (30) is fixedly connected to the annular bracket (20), and the other end of the telescopic member (30) is connected to the rigid pipe (11) via a hinge and a slider (36), and the central axis of the telescopic member (30) is not perpendicular to the central axis of the rigid pipe (11); A regulating component, used for controlling the extension and contraction of the telescopic member (30); The rigid pipe (11) is provided with a slide rail for controlling the sliding block (36) to move axially along the rigid pipe (11), and the central axis of the telescopic member (30) forms an angle with the central axis of the rigid pipe (11); The telescopic member (30) is a cylinder, and the cylinder comprises a cylinder body (31), a first piston (33) and a rod body (32); The first end of the cylinder body (31) is hinged on the annular support (20), and a first chamber (34) is formed between the first end and the first piston (33); The rod body (32) extends out of the second end of the cylinder body (31) and is connected to the slider (36) via a hinge; The regulating component comprises an air pump (40), an air groove (23) formed in the annular support (20), an air supply pipeline (41) for connecting the air groove (23) and the air pump (40), and a valve plate (46) with an adjustable opening; The air groove (23) is in communication with the first chamber (34); the valve plate (46) is arranged on the cylinder body (31) and is used to open and close the first chamber (34); The regulating component further comprises a branch groove body (42) extending from the air groove (23), a control switch (48) and a second piston (43) arranged in the branch groove body (42), and a first spring (44) and a movable bracket (45) arranged on the second piston (43); The front end of the branch groove body (42) is in communication with the gas groove (23), and the rear end of the branch groove body (42) forms a cylindrical portion (421); the second piston (43) is located at the gas outlet side of the control switch (48) and is movably disposed in the cylindrical portion (421); The movable bracket (45) extends out of the branch slot (42) and is connected to the valve plate (46) to drive the valve plate (46) to open and close the first chamber (34); the first spring (44) acts on the second piston (43), so that the second piston (43) controls the valve plate (46) to remain open through the movable bracket (45); The opening of the control switch (48) is adjusted to adjust the speed of pressure increase in the cylindrical portion (421). When the opening of the control switch (48) is large, the pressure in the cylindrical portion (421) increases rapidly, so that the second piston (43) can overcome the force of the first spring (44) in a short time, and then quickly control the valve plate (46) to close through the movable bracket (45), and the extension of the cylinder is short; when the opening of the control switch (48) is small, the second piston (43) needs a longer time to overcome the force of the first spring (44), so that the valve plate (46) is opened for a longer time and the extension of the cylinder is longer.

2. The air duct according to claim 1, Features: The valve plate (46) can move along the radial direction of the cylinder body (31), the cylindrical portion (421) is arranged corresponding to the valve plate (46), and the central axis of the cylindrical portion (421) is perpendicular to the central axis of the cylinder body (31).

3. The air duct according to claim 1, Features: The regulating component also includes a second spring (47), one end of the second spring (47) is connected to a side of the annular bracket (20) away from the cylinder, and the other end of the second spring (47) is connected to the rigid pipe (11). The rigid pipe (11) maintains an initial state under the action of the second spring (47).

4. The air duct according to any one of claims 1 to 3, Features: The flexible pipe (10) is a corrugated pipe.

5. The air duct according to any one of claims 1 to 3, Features: The number of the telescopic parts (30) is at least 3.

6. An air conditioning system, Features: It comprises a controller, a detection device (50) and the air duct according to any one of claims 1 to 5; The detection device (50) comprises a temperature sensor and an infrared sensor, the temperature sensor being used to obtain the gas temperature at the air outlet (111), and the infrared sensor being used to obtain the distance between the air outlet (111) and a human body and the temperature of the human body; The controller uses the regulating component to adjust the position of the air outlet (111) based on the distance information obtained by the infrared sensor; the controller uses the regulating component to adjust the direction of the air outlet (111) based on the human body temperature information obtained by the infrared sensor; and the controller adjusts the air outlet temperature at the air outlet (111) based on the human body temperature information and the gas temperature information.

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